Vehicle Accelerator Misoperation Detection During Driver Assist
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mistaken operation of the accelerator pedal is more likely to occur during automatic vehicle acceleration or deceleration due to the lack of physical feedback, leading to unintended vehicle acceleration.
Innovation Solution
A control device that adjusts judgment conditions for detecting mistaken accelerator pedal operation based on the context of automatic driving assistance, relaxing criteria when such assistance is active to reduce false positives.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If driver assist for automatic acceleration and deceleration is performed, then productivity is improved, but reliability deteriorates due to increased likelihood of mistaken accelerator pedal operation
Solution Approach 1:
The control device dynamically changes the judgment conditions for mistaken operation based on the operational state. When driver assist is active, the system adopts a first set of judgment conditions that are more sensitive to mistaken operations, and when driver assist is inactive, it switches to a second set of conditions. This dynamic adaptation allows the system to maintain high reliability during automatic control while preserving productivity benefits.
Solution Approach 2:
The system changes the parameters of judgment conditions (such as depression speed thresholds, depression amount thresholds, and time thresholds) based on whether driver assist is being performed. By adjusting these parameters dynamically, the system optimizes the balance between detecting mistaken operations and maintaining automatic acceleration/deceleration functionality.
2Reliability
If judgment conditions for mistaken operation are made strict, then reliability is improved, but productivity deteriorates due to false positives during automatic driving
Solution Approach 1:
The control device employs dynamic adjustment of judgment conditions based on the current driving mode. During automatic acceleration and deceleration, the system uses relaxed judgment conditions to avoid false positives that would interrupt productivity. When manual control is detected, stricter conditions are applied to ensure reliability. This dynamic switching resolves the contradiction between detection accuracy and operational continuity.
Solution Approach 2:
The system performs preliminary identification of the driving mode (automatic vs. manual) before applying judgment conditions. By determining in advance whether driver assist is active, the system can pre-select appropriate judgment condition sets, preventing false positives from disrupting automatic driving operations while maintaining reliable mistaken operation detection when needed.
Data Source
AI summary
A control device configured to judge that an accelerator pedal of the vehicle has been mistakenly operated when predetermined judgment conditions stand, limit part or all of a drive force of the vehicle generated corresponding to an amount of depression of the accelerator pedal when judging that the accelerator pedal has been mistakenly operated, and ease the judgment conditions while driver assist in which acceleration and deceleration of the vehicle are performed automatically is being performed compared to when that driver assist is not being performed.